public class FourTuple {
    String symbol;
    String operand1;
    String operand2;
    String result;
    public FourTuple(String symbol, String operand1, String operand2, String result){
        this.symbol = symbol;
        this.operand1 = operand1;
        this.operand2 = operand2;
        this.result = result;
    }

    @Override
    public String toString() {
        return "(" + this.symbol + ", " + this.operand1 + ", " +this.operand2+ ", " +this.result + ")";
    }

}
